package com.hmdp.service.impl;

import cn.hutool.core.util.StrUtil;
import cn.hutool.json.JSONUtil;
import com.hmdp.entity.ShopType;
import com.hmdp.mapper.ShopTypeMapper;
import com.hmdp.service.IShopTypeService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.hmdp.utils.RedisConstants;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

/**
 * <p>
 *  服务实现类
 * </p>
 *
 * @author 虎哥
 * @since 2021-12-22
 */
@Service
public class ShopTypeServiceImpl extends ServiceImpl<ShopTypeMapper, ShopType> implements IShopTypeService {

    @Resource
    private StringRedisTemplate stringRedisTemplate;
    @Override
    public List<ShopType> typelist() {
        String key = RedisConstants.CACHE_SHOP_KEY;
        String shopTypeJson = stringRedisTemplate.opsForValue().get(key);
        if (StrUtil.isNotBlank(shopTypeJson)){
            List<ShopType> shopTypes = JSONUtil.toList(shopTypeJson, ShopType.class);
            return shopTypes;
        }
//        不存在
        //        List<ShopType> typeList = typeService
//                .query().orderByAsc("sort").list();
        List<ShopType> typeList = query().orderByAsc("sort").list();
        String list = JSONUtil.toJsonStr(typeList);
        stringRedisTemplate.opsForValue().set(key,list);
        return typeList;
    }
}
